JP2020024809A - 二次電池の劣化判定システム及び劣化判定方法 - Google Patents
二次電池の劣化判定システム及び劣化判定方法 Download PDFInfo
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- 230000006866 deterioration Effects 0.000 title claims abstract description 102
- 238000000034 method Methods 0.000 title claims description 17
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims abstract description 47
- 229910001416 lithium ion Inorganic materials 0.000 claims abstract description 47
- 238000005259 measurement Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 16
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 230000006870 function Effects 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910000652 nickel hydride Inorganic materials 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/392—Determining battery ageing or deterioration, e.g. state of health
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/205—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using distributed sensing elements
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L1/00—Measuring force or stress, in general
- G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
- G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/425—Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/48—Accumulators combined with arrangements for measuring, testing or indicating the condition of cells, e.g. the level or density of the electrolyte
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of state of health [SOH]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/42—Methods or arrangements for servicing or maintenance of secondary cells or secondary half-cells
- H01M10/44—Methods for charging or discharging
- H01M10/445—Methods for charging or discharging in response to gas pressure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Electrochemistry (AREA)
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- General Physics & Mathematics (AREA)
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- Power Engineering (AREA)
- Medical Informatics (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Materials Engineering (AREA)
- Secondary Cells (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
- Tests Of Electric Status Of Batteries (AREA)
Abstract
Description
2 リチウムイオン電池(二次電池)
3 充電装置
4 制御装置
5A〜5D ひずみゲージ(圧力検出部)
21 筐体
22 正極端子
23 負極端子
24 主面
24A〜24D 角部
41 充電制御部
42 劣化判定部
ステップS01 圧力検出ステップ
ステップS02 劣化判定ステップ
S1〜S4 測定値
G 膨張最大位置
L1 x軸方向の辺の長さ
L2 y軸方向の辺の長さ
Claims (6)
- 二次電池の表面に取り付けられ、取付位置の電池表面の圧力を検出する少なくとも4つの圧力検出部と、
前記少なくとも4つの圧力検出部の測定値に基づいて、前記二次電池の劣化を判定する劣化判定部と、
を備え、
前記劣化判定部は、前記二次電池の表面のうち、前記少なくとも4つの圧力検出部により区画される領域の中で、体積膨張が最大となる膨張最大位置を推定する、
二次電池の劣化判定システム。 - 前記二次電池の前記表面のうちの一面に4つの前記圧力検出部が配置され、
前記劣化判定部は、
前記一面の中央位置を原点とし、前記4つの圧力検出部のそれぞれが各象限に配置されるように二次元座標系を設定し、
前記圧力検出部のうち、前記二次元座標系のx軸の正側に配置される2つの前記圧力検出部の測定値の和と、前記二次元座標系のx軸の負側に配置される2つの前記圧力検出部の測定値の和との差分を計算し、該差分に応じて前記中央位置からのx軸方向のズレ量を算出し、
前記圧力検出部のうち、前記二次元座標系のy軸の正側に配置される2つの前記圧力検出部の測定値の和と、前記二次元座標系のy軸の負側に配置される2つの前記圧力検出部の測定値の和との差分を計算し、該差分に応じて前記中央位置からのy軸方向のズレ量を算出し、
前記x軸方向のズレ量、及び、前記y軸方向のズレ量に基づいて、前記膨張最大位置の座標を算出する、
請求項1に記載の二次電池の劣化判定システム。 - 前記圧力検出部は、前記二次電池の表面の略矩形状の主面の四隅にそれぞれ設置される、
請求項1または2に記載の二次電池の劣化判定システム。 - 前記圧力検出部はひずみゲージである、
請求項1〜3のいずれか1項に記載の二次電池の劣化判定システム。 - 前記二次電池はリチウムイオン電池である、
請求項1〜4のいずれか1項に記載の二次電池の劣化判定システム。 - 二次電池の表面に取り付けられた少なくとも4つの圧力検出部により、取付位置の電池表面の圧力を検出する圧力検出ステップと、
前記少なくとも4つの圧力検出部の測定値に基づいて、前記二次電池の劣化を判定する劣化判定ステップと、を含み、
前記劣化判定ステップでは、前記二次電池の表面のうち、前記少なくとも4つの圧力検出部により区画される領域の中で、体積膨張が最大となる膨張最大位置が推定される、
二次電池の劣化判定方法。
Priority Applications (7)
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JP2018147714A JP6788640B2 (ja) | 2018-08-06 | 2018-08-06 | 二次電池の劣化判定システム及び劣化判定方法 |
US17/260,733 US11467221B2 (en) | 2018-08-06 | 2019-08-02 | Degradation-determination system and method for determining degradation of secondary battery |
PCT/JP2019/030528 WO2020031900A1 (ja) | 2018-08-06 | 2019-08-02 | 二次電池の劣化判定システム及び劣化判定方法 |
EP19847016.3A EP3817127A4 (en) | 2018-08-06 | 2019-08-02 | WEAR DETERMINATION SYSTEM AND WEAR DETERMINATION METHOD FOR SECONDARY BATTERY |
CN201980049070.7A CN112514137A (zh) | 2018-08-06 | 2019-08-02 | 二次电池的劣化判定系统以及劣化判定方法 |
JP2020181075A JP7094345B2 (ja) | 2018-08-06 | 2020-10-29 | 二次電池の劣化判定システム及び劣化判定方法 |
US17/929,850 US20220413060A1 (en) | 2018-08-06 | 2022-09-06 | Degradation-determination system and method for determining degradation of secondary battery |
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JP7346789B2 (ja) | 2020-06-03 | 2023-09-20 | エルジー エナジー ソリューション リミテッド | バッテリースウェリング検査装置及び方法 |
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JP2013020826A (ja) * | 2011-07-12 | 2013-01-31 | Toyota Motor Corp | 組電池の状態検出装置 |
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US20220413060A1 (en) | 2022-12-29 |
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